This is incredible. They both look so lifelike, and the poses are awesome.
Both fighters look amazing and sexy also I like the gym environment you made thou got to ask was the lighting darker by you or was that way it had come out?
If memory serves, it was the default dragon slayer lighting that came standard with DS since 4.6? Apply it and tinker a bit with the luminocity. This was rendered in IRay though, so I don't know how this would turn out in the 3Delight or OpenGl engine